Ventilator.



H. W. LEEDS.

VENTILATOR.

APPHCATlON FILED JUNE 26,19l5.

Patented Jan. 9, 1917.

2 SHEETS-SHEET l.

H. W. LEEDS.

VENTILATOR.

APPLICATION FILED JUNE 26. ms.

Patented Jan. 9,1917.

2 $HEETSSHEET 2.

HOSMER W. LEEDS, OF CHICAGO, ILLINOIS.

VENTILATOR.

Specification of Letters Patent.

Patented J an. 9, 1917.

Application filed June 26, 1915. Serial No. 36,431.

To all whom it may concern Be it known that I, HosMnR W. LEEDS, a citizen of the United States, resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Ventilators, of which the following is a specification.

This invention relates to that type of ventilator covered by my Patent No. kl-8,14 1, dated February 1, 1910, and the construction is included within the generic idea of the invention therein claimed although constituting an improvement thereon by means of which the construction is simplified and adapted to a wider range of use where compactness and simplicity are important factors.

The primary objects of the invention are the provision of means for the introduction to and the withdrawal of air from a car, or similar closed apartment, while separating from the inflowing air any detritus carried thereby, such as rain water, or cinders, or the like.

In order that the invention may be readily understood, preferred and modified embodiments of the same are set forth in the accompanying drawings and in the following detail'description predicated thereon, it being understood that as the invention is susceptible of embodiment in other and varied constructional forms the drawing and description are to be taken in an illustrative, and not in an unnecessarily limiting sense.

In the drawingsFigure 1 is a top plan View, diagrammatic in its nature, of a car having the improved ventilator attached to its sides. Fig. 2 is a fragmentary view showing the ventilator and car side in horizontal section. Fig. 3 is a vertical section on the line 33 of Fig. 2. Fig. 4: is a view similar to Fig. 1 showing the improved ventilator mounted on top of a car. Fig. 5 is a horizontal section through the ventilator. Fig. 6 is a vertical transverse section on the line 66 of Fig. 5; and Fig. 7 is a fragmentary side elevation showing the mechanism for controlling the damper.

Having reference first to Figs. 1, 2 and 3 of the drawing, the inner sheathing of the car is indicated at 11, the outer sheathing at 12, and the intermediate insulating material at 13, with an air space 14:. The car side is provided with an aperture or port 15 controlled by the damper 16 mounted upon the pintle 17 or any other suitable hinge, the

handle 18 fixed upon the pintle 17 serving as a means for opening and closing the damper 16 and being adapted to be held in ad usted position by engagement with the quadrant 19. Upon the side of the car over the aperture 15 is a casing or hood 20 open at one end as indicated at 21, the side wall 22 of the casing and its end wall 23 preferably merging one within the other upon a curve at 24;. The top and bottom walls 25, 26 of the hood are advantageously disposed at right angles to the side and end Walls and perpendicular to the car side. Within the hood 20 is arranged a partition wall having a portion 27 extending substantially parallel to the side wall 22 and separating the same from the port 15 so as to form between the side wall 22 and the partition 27 a tortuous air-entraining duct 28 while an other portion 29 of the partition wall is arranged at an inclination so as to form with the side wall 22 a funnel-like entrance from the open end 21 of the hood to the duct 28. The lower wall 26 of the hood has upstanding therefrom a baffle or rifiie plate 30 extending advantageously from the inner end of the partition wall 27 to the outer wall at approximately the point of merger of the side and end walls. The outer wall of the hood at the junction of the side and end walls is provided with an aperture 31 disposed in the lower portion of the hood and preferably at the junction between the riflle plate 30 and the outer wall.

Although not necessary to the eflicient operation of the device, it is found most desirable to so mount the ventilators upon the car that they shall face away from the car end, in which case those ventilators at the rear end of the car will serve as air intakes, and those at the forward end of the car as air exhausts. The motion of the car or the movement of the air will cause the latter to enter the flaring mouth of the ventilator, as indicated by the arrows in Fig. 2, passing through the duct 28, over the rifHe plate 30, around the interior end of the partition 27 to the interior portion of the hood and thence through the port 15 to the inside of the car or other apartment. Any rain water carried by the entering air currents will be deposited within the duct 28, caught by the rifile plate 30 and drained out through the aperture 31. Likewise cinders or other solid particles carried by the air will be led away through the aperture 31, the riiile plate 30 assisting to arrest their passage into the in terior portion of the hood. The size of the aperture 31 is such as not to interfere to any appreciable extent with the delivery of the air to the port 15, but there will be an air stream of considerable velocity flowing through the aperture 81 suflicient to carry off the detritus.

In that form of construction shown in Figs. 4 to 6, inclusive, the relative positions of the parts are so changed as to adapt the device for use upon the top of the car. In this case the movement of the damper 16*, which controls the port 15*, is in a vertical plane and is parallel to the partition wall 27, instead of being at right angles thereto, as in the former construction. The operation of the device is the same as in that form of construction previously described, the air entering the open mouth of the casing at 21 and being deflected by the inclined portion 29 of the partition into the air duct 28, the detritus being separated therefrom by the rifHe plate 30 and the aperture 31, and the purified air passing around the inner end of the partition 27 to the inner portion of the hood and thence to the port 15.

I claim:

1. In a ventilator the combination of a hood open at one end to provide an inlet and having intermediate its ends an outlet port to the apartment to be ventilated, a par tition wall disposed between the outlet and inlet and extending from the front to a point adjacent the rear of the hood and forming with the walls of the hood a single tortuous air-entraining duct.

2. In a ventilator the combination of a hood open at one end to provide an air inlet and having intermediate its ends upon one side thereof an outlet port to the apartment to be ventilated, a vertical partition wall extending in front of the outlet from the open end of the hood to a point near the rear end thereof to form with the outer wall of the ventilated, a partition wall disposed between the outlet and inlet and forming with the V walls of the hood a single tortuous air-en training duct, a riffie plate disposed in the bottom of the duct to catch detritus carried by the air, the wall of the hood apertured on its rear lower portion adjacent the riflie plate to permit the escape of detritus.

4. In a ventilator the combination of a hood open at one end to provide an air inlet and having an outlet port to the apartment to be ventilated, a partition wall disposed between the inlet and outlet and extending from the open end of the hood to a point near its closed rear end to form a tortuous air-entraining duct, a riifie plate disposed in the bottom of the duct to catch detritus carried by the air, the wall of the hoodv apertured in its lower portion adjacent the inner end of the partition wall to permit the escape of detritus.

5. In a ventilator the combination of a hood open at one end to provide an air inlet and having intermediate its ends upon one side thereof an outlet .port to the apartment to be ventilated, a vertical partition wall-extending in front of the outlet from the open end of the hood to a point near the rear end thereof to form with the outer wall of the hood an air-entraining duct separated from the outlet port by said partition wall, the wall of the hood apertured in its lower portion adjacent the inner end of the partition wall to permit the escape of detritus carried by the air.

HOSMER W. LEEDS.

Witnesses V LEWIS 'I. GREIST, MILTON T. MILLER.

Copies of this patent may be obtained for five cents each, by addressing the commissioner of Patents. Washington, D. G. 

